If like me you crafted over 30 bombs and never got the achievement this solution is for you.
The way I got it to work was to use the weapon wheel to create bombs rather than the crafting table.
In sequence 3 you will get access to the crafting table for all your pyromaniac needs. Create 1 bomb (any will do) back out of the crafting menu, press RB to bring up the weapon wheel anf press
on a bomb to add them to your inventory.
Go back to the crafting table and dismantle all but 1, rinse and repeat till you get your achievement.
Happy hunting folks
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